Firesupport Marui AEG (non recoil) Upgrade SP90 Service 1J 340 350

THIS IS A SERVICE and Can be ORDERED with a new gun or can be put on a customers gun if their gun is sent to us.

 Firesupport Marui AEG (non recoil) Upgrade SP90

Upgrade non recoil AEG with guarder SP90 spring and bushes

(Not for P90, Thompson or M14 or any Recoil or EBB models, please ask if you want one of these models upgrading)

Depending on which model we are upgrading you will get 300 - 330 fps

Longer barreled guns will get the hifgher end fps.